NEW - Starline 50 Beowulf Brass - 100 Count Pack

The 12.7x42mm is a powerful big bore cartridge designed for use in AR style rifles. The Starline brass case is essentially a lengthened 50 AE (1.650 long) with a rebated 7.62x39 style head. This Starline brass case is designed to use a large magnum pistol primer.

.50 Beowulf®, Beowulf®, .50 Beo® and Beo® are registered trademarks of Alexander Industries Inc., and are in no way affiliated with Starline Brass®

1.647 - 1.652 O.A.L.

* This is NOT loaded or primed ammunition *